> k<-c(1,1,1,1,1,3,5,6,2,1,3,9,2,3,1,1,1) > table(k) k 1 2 3 5 6 9 9 2 3 1 1 1 > names(table(k)) [1] "1" "2" "3" "5" "6" "9" > as.numeric(names(table(k))) [1] 1 2 3 5 6 9 > x <- table(k) > as.numeric(names(table(k)))[4] [1] 5
You can always save the (numeric version of the) names as an object, too. Does that help? Dennis 2011/3/16 Frédérique Kuiper <fre_stam...@hotmail.com> > > Dear reader, > > I have the following problem: > > > I have some string with numbers like k. I want > to have a table like the function table() gives. However I am not able > to call the first row, the 1, 2, 3, 5, 6 or 9. I tried to do that by a > data.frame, but that doesn't seem to work either. The levels keep > bothering me. > > > This is an example of the code: > > > k<-c(1,1,1,1,1,3,5,6,2,1,3,9,2,3,1,1,1) > > > table(k) > > k > > 1 2 3 5 6 9 > > 9 2 3 1 1 1 > > > x<-table(k) > > > > > > dim(x) > > [1] 6 > > > > > > x[4] #But I only want to read the five > > 5 > > 1 > > > > > > x<-data.frame(x) > > > > > > x[4,1] #You are not allowed to use this five for example 3*x[4,1] is > impossible > > [1] 5 > > Levels: 1 2 3 5 6 9 > > > > > > I hope anyone has an idea of using the table > function without this inconvenience. I thought about writing a counter > myself, but that seems complicated. > > Because I have to examine very large examples later on, I don't want to > slow the calculations down if possible. > > > Thanks for your help in advance. > > > Frederique > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]]
______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
